Cylinder printing machine



, l 4 sheets-sheet 2, J. T. KING.

CYLINDER PRINTING MACHINE.

(No Model.)

-Paseli'ned Feb. 7, 1888.

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(No-Model.) y 4Sl1eets-Sheet 3. J. T. KING.

CYLINDER PRINTING MACHINE. I No. 377,432. Y Patented Feb. 7, 1888.

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CYLINDER PRINTING MACHINE.

Nas-77,432. Patented Feb. 7.1888..

WIINEssEs i l 'INVENIR .Jkt

UNITED STATES PATENT OFFICE. l

JOHN T. KING, or MADISON, WISCONSIN, -AssIGNOR 'To WALKER a co., OF Y SAME PLACE. l f

CYLINDER PRlNTlNG-MAcHlNE.

SPECIFICATION forming part of Letters Patent No. 377,432, dated February 7, 1888.

Application md pms-,1881. serial No. 233,781. (No model.) n

` To all whom it may concern.-

inder between forms or pages.

Be it known that I,JOHN T. KING, of the city offMadison, county of Dane, and State of Wisconsin, have invented certain Improvements in Cylinder Printing-Machines, of which the following is a specification, reference being.

had to the accompanying drawings.

My improvements relate to printing-presses in which there is a type-bed that is alternately' raised and lowered-that is to say, raised to make the impression on the paper carried over it by a reciprocating roller-cylinder and then lowered while the cylinder returns. f

The object of my improvements 'is-to provide means for raising and lowering the typebed in a straight line at right angles tothe impression-surface of the bed and for holding it firmly while taking the impression.

My invention consists in the combination of appliances for these purposes, hereinafter described, and succinctly stated in my appended claims. i

My improvements are illustrated as applied to the kind of press known as the Prouty press, shown in United States Patents Nos.

' 206,826 and 249,989, which it is not necessary to describe in detail.

I have found by experience that when thev type-bed is raised and lowered by an oscilla-tin the grippers striking across the head-rule and smashing both grippers and head-rule.

Such accidents are entirely obviated through my improvements, by which the type-bed is raised andlowered vertically or in a straight line and firmly held by lmy appliances While the impression is beingtaken. Iprovide bars or tracks, which Vare fastl to the type-bed, so that the type-cylinder not-only treads upon the rail of the press-frame, but also upon these tracks, which prevents any jarring of the cyl- As the bed is tripped or lowered, the tracks go with it, and they serve for the travelers on theformrollers to run upon.

In the drawings, Figure l is a plan view of a press adapted to the application of my invention. the line 2 2*,of Fig. 1. Fig. 3 is a longitudinal K' section on the line 3 3 of Fig. 1,v viewed from the oppositedirection'from Fig.12. Fig. 4 is a transverseY section on the line 44 of Fig. 2,' A, and Fig. 5 is a detail section of part of the 55 main frame and track.

Referring to the letters upon the drawings,

X indicates the main frame; Y,0ne of the main driving-shafts, which makes a revolution at each impression; and Z, a part of the rocking 6o l support of thetype-bed.

The operative parts, not herev quite fully illustrated and not described, are essentially such as shown in my UnitedStates Letters Patent No. 361,423, issued Aprn 19,1s8`7,55 Y

which form no part'of my present invention.

It will be understood that the type-bed rests I i upon suitable rocking supports whose move@ ment,by connection with lthe rotating parts at the proper time, slightly raises and lowers 7c-v ing through the oscillating bar Z, in` whichgl' Vthey are adjustable for leveling the type-bed,

and their heads enter the sockets a.

E is an arm secured to one of the bars Z, and provided with a screw, e. When the bar Z'is oscillated, so as to raise the type-bed into position for takingV the impression, the screw e will bearagainstthe end of the bed and hold E,

the bar firmly. This screw is ladjustable so as to serve that purpose.

C. indicates the tracks .upon either side of the type-bed. The oscillation of the bar Z will cause the sliding bars Ay t0 slideon the 9o under side of the type-,bed D without moving it, which will cause thetype-bed and the tracks C to be raised and lowered vertically the proper distances.

What I claim to be new, and desireto secure 5 by Letters Patent of the United States, is"

Fig. 2 is a longitudinal section on 5c l. The oombinatio11,with the osoillatihgbars In testimony whereof I have hereunto sub- Z and bolts B', of the sliding bars A', the scribed myname.

typo-bed, and tracks C', substantially as set forth. JOHN T. KING. 5 2. The combnatio11,with the oscillating bars Z and bolts B", of the sliding` bars A, the VituesseS:

type-bed, tracks C, the arm E', and screw e, L. J. PIoKARTs,

substantially as set forth. W. E. DiIAIN. 

